Seam for sewed articles.



Witness@ v M 7 f No. 892,438. PATENTBD JULY 7, 1908.

T. LIBBY.

SRAM POR SBWED ARTICLES.

'APPLICATION FILED JUNE 5.1567.

@Itter/nui UNITED STATES PATENT OFFICE.

THOMAS LIBBY, OF WATERVILLE, MAINE.

SEAM FOR SEWED ARTICLES.

To all 'whom it may concern:

Be it known that I, TrioMAs LIBBY, a citizen of the United States, residing at I/Vaterville, in the county of Kennebec and State of Maine, have invented certain new and useful Improvements in Seams -for Sewed Articles, of which the 'following is a specification.

, My invention relates to seams used in sewing articles together and has for its object the provision of a seam that will not rip should any of its stitches be worn or cut and consists in the forming of a knot in each stitch by passing the threads through the hole twice and casting the strands of the threads around each 4other each time.

My invention will be described iii detail hereinafter and illustrated in the accompanying drawings in which*e Figure l is a sectional view of two strips of leather united by means oi' stitching having a knot formed in each stitch, and Fig. 2, a modified form of stitching in which the knots are made at intervals.

Referring to the drawings, A and B indicate two strips of leather sewed together by means oi the two strands of thread l and 2. Heretofore in sewing leather by hand it has been the practice to run an awl through the two strips or pieces of leather at the point where a stitch is to be made and then run the two strands oi` thread through the hole 3 formed thereby, one strand from each end of the hole.

In making my improved stitch a hole 3 is made inthe parts to be sewed together by means of an awl or other pointed implement and the ends oi the two strands of thread inserted through the hole one Afrom each end.

After pulling the threads partly through the Specification of Letters Patent.

Application filed .Tune 5, 1907.

Patented July '7, 1908.

Serial No. 377,414.

hole one of the ends is cast around the other strand in one direction making a sim )le knot and the threads drawn tight so tlhat the twisted portion forming the simple knot is in the hole 3. The ends are then passed back through the saine hole and belore drawing tight one end is passed around the other strand again this time in an opposite direction to the cast heretofore described so as to make another simple knot. By drawing the last simple knot into the hole in tightening the scam it iorms with the other knot, `iirst formed, a double oi hard knot 4 as shown in the drawings.

By this construction of seam it will be readily understood that should the thread break between any two of the stitches the knots t on each side oi the break would prevent the seam from ripping.

Having thus described my invention what I claim is- A scam made of two threads both of which are passed through the material 'from the opposite sides thereof, the stitches having knots formed therein by passing the threads through the material towards one another in opposite directions and casting tliein around each other, and then passing them back through the same stitch hole and casting the threads around one another in the opposite direction, substantially as shown and de- 'l' scribed.

In testimony whereoi` I hereto aHiX my signature in the presence of two witnesses.

THOMAS LIBB Y.

IVitnesses:

SAMUEL EN'riN, GEORGE H. SIMPSON. 

